Yamauchi I
Nihon Sanka Fujinka Gakkai Zasshi. 1984 May;36(5):785-94.
The utility of X-ray CT for the preoperative differentiation of benign and malignant ovarian tumors was investigated. Preoperative CT findings on 137 cases pathohistologically diagnosed as ovarian tumors, both benign and malignant, were compared. Dermoid cysts (42 cases) showed characteristic CT images and CT numbers, facilitating diagnosis. In CT findings of tumors (95 cases) other than dermoid cysts, (1) 70.8% of cystic tumors with protrusion from the cyst walls, and 92.9% of solid tumors with fluid parts with malignant; (2) 59.3% of tumors whose major axes measured on the CT image were 15 cm or longer were malignant; (3) all the tumors in which ascites was found on CT, and 46.2% of the tumors with enlargement of the other ovary observed by CT, were malignant; and (4) the CT number of the tumor fluid was 18.26 +/- 13.10 HU for the benign and 20.64 +/- 7.49 HU for the malignant tumors, and that of the solid parts was 51.67 +/- 16.80 HU for the benign and 37.73 +/- 10.34 HU for the malignant ones, showing different distribution areas. The CT findings were retrospectively scored by the use of Hayashi's quantification theory type II, and 93.2% of the benign-malignant differentiation rate was obtained.
研究了X线计算机断层扫描（X-ray CT）在卵巢肿瘤良恶性术前鉴别诊断中的应用价值。比较了137例经病理组织学诊断为卵巢肿瘤（包括良性和恶性）的术前CT表现。皮样囊肿（42例）具有特征性的CT图像和CT值，有助于诊断。在皮样囊肿以外的肿瘤（95例）的CT表现中，（1）70.8%的囊肿壁有突出的囊性肿瘤和92.9%有液性成分的实性肿瘤为恶性；（2）CT图像上长径测量为15cm或更长的肿瘤中，59.3%为恶性；（3）CT上发现有腹水的所有肿瘤以及CT观察到对侧卵巢增大的肿瘤中，46.2%为恶性；（4）良性肿瘤的肿瘤液CT值为18.26±13.10HU，恶性肿瘤为20.64±7.49HU，实性部分的CT值良性为51.67±16.80HU，恶性为37.73±10.34HU，显示出不同的分布区域。利用林氏量化理论II型对CT表现进行回顾性评分，获得了93.2%的良恶性鉴别率。
